Low air humidity significantly affects human health. In winter, the air inside the building is heated to approximately 20-25 degrees. As a result of this heat, the dry air in the environment decreases to 10-30%.Dry air causes dryness in the throat, nose and respiratory tract, which is the basis for the cracking of the skin and the onset of typical winter diseases. The ideal humidity is between 40% and 60% to prevent germ growth and spread. Proper control of this humidity range in the hospital environment facilitates static protection in the environment where sensitive laboratory devices are located, and making the hospital safer for hospital staff and visitors. Also, reducing the hospital ambient humidity to an accurate level; It helps in the admission and treatment processes of people with allergies or asthma. In accordance with the European Directive 2002/91 / EC, according to EN ISO 13790: 2008, EN 13779: 2008 VDI 6022, DIN 1946-4 standards, ventilation and air conditioning systems are obliged to provide ideal ambient conditions for doctors in hospitals and operating rooms, taking into account the needs of the patient. Ventilation and air conditioning systems should be designed in such a way that they do not contribute to the spread of pollutants and should be easy to access, clean and control. Service continuity and accuracy should be uninterrupted in operating rooms. With HAVKON ventilation and air conditioning control systems, these conditions are fulfilled in a detailed and precise manner.